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Femtosecond coherent spectroscopy of four-wave mixing and photon echoes in a GaAs/AlGaAs heterostructure at room temperature

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dc.contributor.author Ivanin K.
dc.contributor.author Leont'Ev A.
dc.contributor.author Lobkov V.
dc.contributor.author Safiullin G.
dc.contributor.author Samartsev V.
dc.date.accessioned 2018-09-18T20:15:09Z
dc.date.available 2018-09-18T20:15:09Z
dc.date.issued 2012
dc.identifier.issn 1062-8738
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/137978
dc.description.abstract The results from experiments employing coherent femtosecond spectroscopy in a layer of two-dimensional electron gas at the boundary of the GaAs/AlGaAs heterojunction at room temperature are presented. The decay curves of primary femtosecond photon echo are obtained. The decoherence time in two-dimensional electron gas depends strongly on the power of the exciting pulse and varies from 36 to 54 fs. The dephasing time is studied for the first time as a function of the power of exciting pulses at room temperature. It is established that this dependence obeys the law T 2 ∼ N -0.22, which differs from the typical law T 2 ∼ N -1 for unscreened electron-electron interaction in semiconductor crystals. Analysis shows that electron-phonon interaction plays an important part along with electron-electron interaction. The induced spin gratings in the GaAs/AlGaAs heterostructure are studied with an eye to their possible application in spintronics. © Allerton Press, Inc., 2012.
dc.relation.ispartofseries Bulletin of the Russian Academy of Sciences: Physics
dc.title Femtosecond coherent spectroscopy of four-wave mixing and photon echoes in a GaAs/AlGaAs heterostructure at room temperature
dc.type Conference Paper
dc.relation.ispartofseries-issue 3
dc.relation.ispartofseries-volume 76
dc.collection Публикации сотрудников КФУ
dc.relation.startpage 290
dc.source.id SCOPUS10628738-2012-76-3-SID84860787526


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  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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